Window-screen.



W. S. BRIDGES.

WINDOW SCREEN.

APPLICATION FILED MAY 4, 1914.

1L 9 1 3 l fiU fi Patented Mar. 9, 1915.

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lt @EA WINDOW-SCREEN.

Specification of Letters Patent.

Patented Mar. 9, 119th.

Application filed May 4, 1914. Serial No. 836,242.

To all whom it may concern Be it known that I, WALTER S. BRIDGES, acitizen of the United States, residing at Chicago, in the county of Cookand State of Illinois, have invented certain new and useful Improvementsin Window-Screens, of which the following is a specification.

This invention relates to window screens having a collapsible frame, andits object is to provide a frame of very simple construction to whichthe netting or screen fabric can be readily secured, and which frame isadjustable to properly fit in the Window frame. This object is attainedby means of a novel combination and arrangement of parts to behereinafter described and claimed, reference being had to theaccompanying drawing, in which Figure 1 is an elevation of the screen;Fig. 2 is a perspective view of the screen frame parts before they areassembled, and Figs. 3 and 4: are perspective views showing devices forclamping the screen frame parts in assembled position.

Referring specifically to the drawing, the screen frame comprises twoend bars 5 having projecting pins or other suitable fasteners 6 on oneof their faces to secure the ends of the netting or screen fabric 7. Thebars are connected by top and bottom rails which are in sections. Thetwo sections of the top rails are indicated at 8 and 9, respectively,and those of the bottom rail at 10 and 11, respectively. The section 8is pivoted at 12 to the upper end of one of the bars 5, and the section9 is pivoted at 13 to the upper end of the other bar 5. The sections 10and 11 are connected in a like manner to the lower ends of the bars 5.

To apply the netting 7 to the frame, the rail sections 8 and 9 are swunginward to cross each other, and the rail sections 10 and 11 are alsoplaced in crossed relation, and the bars 5 are brought together adistance to allow the ends of the netting to be fastened thereto by thepins 6. Clamps are now applied to the intersecting portions of therails, and the rail sections are swung outward to come into parallelismalongside each other, whereby the bars 5 are spread and the netting 7 isstretched tight therebetween. The rail sections are locked in the lastdescribed position by tightening up clamping members each of whichcomprises a small metal plate which is bent to form a yoke, the branches1 1 of which straddle the rall sections, one of the yoke branchescarrylng a set screw 15 which is adapted to be screwed against one ofthe rail sections, whereupon the sections are clamped together andsecurely held in parallelism. A further means for locking the sectionsin parallelism comprises a sleeve 16 which is slidably mounted on one ofthe sections and is slipped over the lapping end of the adjacentsection. To remove the netting 7, it is necessary only to disengage theclamping devices of the top and bottom rails, whereupon said rails maybe swung inward to bring the end bars 5 closer together. The netting maythen be removed, and if worn it can readily be replaced by a new sheet.The end bars may be made of wood, and the top and bottom bars arepreferably thin metal strips.

The structure herein described provides a very cheap and simple screenframe which can be easily mounted in place or removed from the windowframe. The end bars when expanded as described to stretch the nettingare properly seated in the jamb grooves of the window frame.

I claim:

1. A screen frame comprising spaced end bars, sectional top and bottomrails, the sections of said rails being pivoted to the respective endbars, and free to be placed in crossed relation to bring the end barstoward each other, and to be placed side by side in parallelism to spacethe end bars farther apart, means for clamping the sections in thelast-mentioned position, and means for securing a screen fabric to theend bars.

2. A screen frame comprising spaced end bars, sectional top and bottomrails, the sections of said rails being pivoted to the respective endbars, and free to be placed in crossed relation to bring the end barstoward each other, and to be placed side by side in parallelism to spacethe end bars farther apart, a clamping yoke straddling the sections, aset screw carried by the yoke for clamping the sections together in thelastmentioned position, and means for securing a screen fabric to theend bars.

In testimony whereof I aflix my signature in presence of two witnesses.

WALTER S. BRIDGES.

Witnesses:

S. J. LEHRER, H. G. BATCHELOR.

topics at this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, JD. b.

